Vapor burner



Jan. 5, 1932. R, M, SHERMAN 1,839,444

VAPOR BURNER Filed Aug. 192a Patented Jan. 5, 1932 uuiTED STATES PATENT OFFICE RALLSTON MI. SHERMAN, OF GLASTONBURY, CONNECTICUT, ASSIGNOR TO THE SILENT GLOW OIL BURNER CORPORATION, OF HARTFORD, CONNECTICU T, A CORPORATION OF CONNECTICUT VAPOR BURNER Applicationfiled August 25, 1926. Serial No. 181,396.

My invention relates to the class of burn-- ers in which hydro-carbon and similar fluids are employed as a fuel, and an object of my invention, among others, is the production of a burner'of this type that shall be simple in construction and particularly eflicient in the results gained from it's use. I One form of a burner embodying myinvention, and in the construction and use of m which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawings, in which- Figure l is a view in side elevation, partially in section, of a burner embodying my invention. 4

Figure 2 is a top view of the burner. Figure 3 is a View, scale enlarged, in vertical section through my improved burner.

Figure 4 is a view in vertical section ac through a burner embodying a little different form of construction than that shown in Figure 3. v

In the accompanying drawings my improved burner is shown as applied to a'fur- 28 nace, used for heating purposes, and that may be of any desired constructonarrd including, a burner chamber 5, that may correspond to the ash pit of an ordinary furnace, and a fire pot 6. A complete furnace is not shown herein, as not being necessary for a thorough understanding of my invention, it being understood that such furnace may comprise a heat-" ing chamber and other parts common to furnaces of this type, my invention consisting principally in theburner for generating heat for the furnace. This-burner is indicated generally by the numeral 7 whichburner is supplied with fuel from a controlling apparatus comprising a float chamber 8, a spring actuated controlling device 9 and a' valve chamber .10, all of which parts are of old and well-known construction, and further and detailed description are therefore omitted herein it. being stated that the valve chamber is provided with old and well-known means for supplying fuel under control to'a supply pipe comprising a receiving section 11 that receives the oil from the valve chamber, and

a delivery section 12 that delivers *oil to the burner, a connection 13 extending between the two sections to complete the passage from the valve chamber to the burner. I

Thissupply pipe is of novel construction and such as to enable it to be easily cleaned, and especially as to that section 12 leading to the burner, and which is most liable to become fouled. This section 12 is so located with respect to the section 11 thata cleaning tool may be inserted in its end 1 1 when opened, said tool being pushed through the pipe to the opposite end, said end being closed by any suitable plug. In the preferred form of construction this section 12 is located in an inclined position, as shown in Fig. 3 of the drawings. v p

The section 12 extends into a base 15 of the burner that is ofv cup shape with a wick groove 16 in the bottom of thefcup, the section 12 of the supply pipe extending through a flange. 17 forming the side of the cup. The bottom of this cup constitutes a vaporizing plate and its interior comprises a vaporizing chamber 34 into which air is supplied downwardly, across the wick and vaporizing chamber ina manner to be hereinafter described. A drip pipe 18 extends from the burner to the valve chamber 10, but as this forms no. part of my present invention 'fur' ther description thereof is omitted herein,

A combustion chamber 19 is supported on and depends .in' a case 20supported as by legs 21, said case being closed at its upper end except for the chamber 19 which is open at the top, and which chamber may be provided with a lining 36. I

The combustion chamber 19 has surrounding its lower end a deflector 22, the upper edge of the deflector being located above the bottom of the combustion chamber and the lower edge of the deflector being located below the bottom of the combustion chamher. The vaporizing plate or cup extends laterally beyond the peripheral limits of the opening to the combustion chamber an". th

crank 29 of the controlling device 9, and operated by said spring control in a manner that will be readily understood. The spring control is connected with a thermostat, not

shown, and is operated thereby in a wellknown manner by changes in temperature, said spring control being also connected by its operating crank 30 with a lever 31 for controlling the supply of fuel to the burner. By this arrangement the supply of air to the burner is diminished when the oilsupply is reduced to a minimum, and perfect combustion is thereby obtained when the flame in the burner is reduced, with a result that an excess of air is prevented at this time. I

Openings 32 extend from the chamber in the bottom of the case' 20, through the base 15, straight to the opening in the bottom of the combustion chamber 19.

Vanes 33 extend from the top edge of the deflector 22 upwardly, these vanes being twisted to dispose them in an inclined position radially, and they are also preferably curved outwardly toward their outer ends, thereby creatin a circular flow of air over the top edge of the deflector.

In operation the air is supplied to the combustion chamber 19 and passes through three. different paths, to wit, first, through the openings 32 straight to the combustion chamber, second, by a devious course lipwardly over the, top edge of, the flange 17, then downwardly between said flange and the deflector 22, then horizontally across the vaporizing chamber 3 1 in the bottom of the cup comprising the base 15 and the flange 17, and then upwardly to the combustion chamber, and, third, over. the top of the deflector 22, then downwardly between the said. deflector and the wall of the combustion chamber, and then upwardly to said combustion chamber,

- the air being given a whirling motion in its .course. A. very important is caused to travel in the deviousopath provided by the flange 17 and the deflector 22 and across the vaporizing chamber, and the "means for supplying air to the combustion chamber as herein shown and described provides a most efiicient mixing of the gases and air that produces maximum results as to combustion in the chamber 19.

' The structure shown in Figure 4 is simi-' atureof the' burner is that construction whereby the air It will be noted that the outlet and inlet ends of the fuel pipe 12 and the drip pipe 18, respectively, are located in the path of currents of air passing into the case 15, which current of air is directed across the ends of said pipes. This is of advantage in that it prevents over-heating at this point.

In accordance with the provisions of the patent statutes I have described the. principles of operation of my invention, together with the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is only illustrative and that the inven- 1 tion may be carried out by other means and applied to uses other than those above set out.

I claim- I 1. A liquid fuel burner having a walled combustion chamber provided at its bottom with a central opening, a vaporizing plate beneath said opening spaced therefrom and having its edges extending beyond the peripheral limits of said opening, the plate being provided with an upturned rim, means for supplying fuel to said vaporizing plate, and air deflecting walls between the rim of the vaporizing plate and the chamber walls and in overlapping relation to the said cham'- ber walls and to the upturned rim of the vaporizing plate, said deflecting walls presenting an inner opening between the deflecting walls and the said chamber walls through which the air is directed downwardly into and across the space above the vaporizing plate, and presenting also an outer opening between said deflecting walls and the upturned rim of said vaporizing plate through which the air is directed substantially laterally across the space above the vaporizing plate.

2. A. liquid fuel burner having a walled combustion chamber provided at its bottom with a central opening, a vaporizing plate beneath said opening spaced therefrom and having its edges extending beyond the peripheral limits of said opening, the plate being provided with an upturned rim, means for supplying fuel to said vaporizing plate, air deflecting walls between the rim of the vaporizing plate and the chamber walls and.

in overlapping relation to the said chamber walls and to the upturned rim of the vaporizing plate, saiddeflecting walls presenting an inner opening between the deflecting walls and the said chamber walls, through which the air is directed downwardly into and across the space above the vaporizing plate, and presenting also an outer opening between said deflecting walls and the upturned rim of said vaporizing plate through which the air is directed substantially-laterally ,across the space above the vaporizing plate, and means to impart a whirling motion, to the air dieas,

rected downwardly between the air deflecting walls and the chamber walls.

3. A liquid fuel burner having a walled combustion chamber provided with a central opening, a vaporizing plate beneath said opening spaced therefrom and having its edges extending beyond the peripheral'limits of said opening, means for supplying fuel to said vaporizing plate, and air deflecting Walls between the edges of the vaporizing'plate and the chamber walls and in overlapping relation to the latter, said deflecting walls presenting an inner openin between said deflecting walls and said cham r walls through which the air is directed downwardly into and across the space above the vaporizing plate, and presenting also an outer opening between said deflecting walls and the edges of said vaporizing plate through which the air is directed substantially laterally across the space above said vaporizing plate.

4:. A liquid fuel burner having a walled combustion chamber provided at the bottom with an opening, "a vaporizing plate beneath said opening spaced therefrom and having its edges extending beyond the peripheral limits of said opening, means for directing a current of air downwardly about the walls defining said opening into and across the space above said vaporizing plate, and means for directing a second current of air pver the edges of said vaporizing plate and substantially laterally across said space.

RALLSTON M. SHERMAN. 

